Netty 4.1.107.Final · io.netty.channel.ThreadPerChannelEventLoopGroup

Modifier and Type	Field and Description
pack-priv final Set<EventLoop>	activeChildren
private final Object[]	childArgs
private final FutureListener<Object>	childTerminationListener
pack-priv final Executor	executor
pack-priv final Queue<EventLoop>	idleChildren
private final int	maxChannels
private volatile boolean	shuttingDown
private final Promise<?>	terminationFuture
private final ChannelException	tooManyChannels

Constructor Summary

Access	Constructor and Description
protected	ThreadPerChannelEventLoopGroup() Create a new `ThreadPerChannelEventLoopGroup` with no limit in place.
protected	ThreadPerChannelEventLoopGroup(int the maximum number of channels to handle with this instance. Once you try to register a new `Channel` and the maximum is exceed it will throw an `ChannelException`. on the `register(Channel)` and `register(ChannelPromise)` method. Use `0` to use no limit maxChannels) Create a new `ThreadPerChannelEventLoopGroup`.
protected	ThreadPerChannelEventLoopGroup(int the maximum number of channels to handle with this instance. Once you try to register a new `Channel` and the maximum is exceed it will throw an `ChannelException` on the `register(Channel)` and `register(ChannelPromise)` method. Use `0` to use no limit maxChannels, ThreadFactory the `ThreadFactory` used to create new `Thread` instances that handle the registered `Channel`s threadFactory, Object... arguments which will passed to each `newChild(Object...)` call. args) Create a new `ThreadPerChannelEventLoopGroup`.
protected	ThreadPerChannelEventLoopGroup(int the maximum number of channels to handle with this instance. Once you try to register a new `Channel` and the maximum is exceed it will throw an `ChannelException` on the `register(Channel)` and `register(ChannelPromise)` method. Use `0` to use no limit maxChannels, Executor the `Executor` used to create new `Thread` instances that handle the registered `Channel`s executor, Object... arguments which will passed to each `newChild(Object...)` call. args) Create a new `ThreadPerChannelEventLoopGroup`.

Method Summary

Modifier and Type	Method and Description
public boolean	awaitTermination(long the maximum time to wait timeout, TimeUnit the time unit of the timeout argument unit) Implements java.util.concurrent.ExecutorService.awaitTermination. Blocks until all tasks have completed execution after a shutdown request, or the timeout occurs, or the current thread is interrupted, whichever happens first.
public boolean	isShutdown() Implements java.util.concurrent.ExecutorService.isShutdown. Returns `true` if this executor has been shut down.
public boolean	isShuttingDown() Implements io.netty.util.concurrent.EventExecutorGroup.isShuttingDown. Returns `true` if and only if all `EventExecutor`s managed by this `EventExecutorGroup` are being shut down gracefully or was shut down.
public boolean	isTerminated() Implements java.util.concurrent.ExecutorService.isTerminated. Returns `true` if all tasks have completed following shut down.
public Iterator<EventExecutor>	iterator() Implements io.netty.util.concurrent.EventExecutorGroup.iterator. Returns an iterator over elements of type `T`.
protected EventLoop	newChild(Object... args) Creates a new `EventLoop`.
public EventLoop	next() Implements io.netty.channel.EventLoopGroup.next, io.netty.util.concurrent.EventExecutorGroup.next. Return the next `EventLoop` to use
private EventLoop	nextChild()
public ChannelFuture	register(Channel channel) Implements io.netty.channel.EventLoopGroup.register. Register a `Channel` with this `EventLoop`.
public ChannelFuture	register(ChannelPromise promise) Implements io.netty.channel.EventLoopGroup.register. Register a `Channel` with this `EventLoop` using a `ChannelFuture`.
public ChannelFuture	register(Channel channel, ChannelPromise promise) Implements io.netty.channel.EventLoopGroup.register. Deprecated Register a `Channel` with this `EventLoop`.
public void	shutdown() Implements abstract io.netty.util.concurrent.AbstractEventExecutorGroup.shutdown. Implements io.netty.util.concurrent.EventExecutorGroup.shutdown. Deprecated Initiates an orderly shutdown in which previously submitted tasks are executed, but no new tasks will be accepted.
public Future<?>	shutdownGracefully(long the quiet period as described in the documentation quietPeriod, long the maximum amount of time to wait until the executor is shutdown() regardless if a task was submitted during the quiet period timeout, TimeUnit the unit of `quietPeriod` and `timeout` unit) Implements io.netty.util.concurrent.EventExecutorGroup.shutdownGracefully. Signals this executor that the caller wants the executor to be shut down.
public Future<?>	terminationFuture() Implements io.netty.util.concurrent.EventExecutorGroup.terminationFuture. Returns the `Future` which is notified when all `EventExecutor`s managed by this `EventExecutorGroup` have been terminated.

Inherited from io.netty.util.concurrent.AbstractEventExecutorGroup:: execute invokeAll invokeAll invokeAny invokeAny schedule schedule scheduleAtFixedRate scheduleWithFixedDelay shutdownGracefully shutdownNow submit submit submit

Field Detail

activeChildren	back to summary
pack-priv final Set<EventLoop> activeChildren

childArgs	back to summary
private final Object[] childArgs

childTerminationListener	back to summary
private final FutureListener<Object> childTerminationListener

executor	back to summary
pack-priv final Executor executor

idleChildren	back to summary
pack-priv final Queue<EventLoop> idleChildren

maxChannels	back to summary
private final int maxChannels

shuttingDown	back to summary
private volatile boolean shuttingDown

terminationFuture	back to summary
private final Promise<?> terminationFuture

tooManyChannels	back to summary
private final ChannelException tooManyChannels

Constructor Detail

ThreadPerChannelEventLoopGroup	back to summary
protected ThreadPerChannelEventLoopGroup() Create a new `ThreadPerChannelEventLoopGroup` with no limit in place.

ThreadPerChannelEventLoopGroup back to summary

ThreadPerChannelEventLoopGroup	back to summary
protected ThreadPerChannelEventLoopGroup(int maxChannels) Create a new `ThreadPerChannelEventLoopGroup`. Parameters maxChannels:int the maximum number of channels to handle with this instance. Once you try to register a new `Channel` and the maximum is exceed it will throw an `ChannelException`. on the `register(Channel)` and `register(ChannelPromise)` method. Use `0` to use no limit

protected ThreadPerChannelEventLoopGroup(int maxChannels)

Create a new ThreadPerChannelEventLoopGroup.

Parameters

maxChannels:int: the maximum number of channels to handle with this instance. Once you try to register a new Channel and the maximum is exceed it will throw an ChannelException. on the register(Channel) and register(ChannelPromise) method. Use 0 to use no limit

ThreadPerChannelEventLoopGroup back to summary

ThreadPerChannelEventLoopGroup	back to summary
protected ThreadPerChannelEventLoopGroup(int maxChannels, ThreadFactory threadFactory, Object... args) Create a new `ThreadPerChannelEventLoopGroup`. Parameters maxChannels:int the maximum number of channels to handle with this instance. Once you try to register a new `Channel` and the maximum is exceed it will throw an `ChannelException` on the `register(Channel)` and `register(ChannelPromise)` method. Use `0` to use no limit threadFactory:ThreadFactory the `ThreadFactory` used to create new `Thread` instances that handle the registered `Channel`s args:Object[] arguments which will passed to each `newChild(Object...)` call.

protected ThreadPerChannelEventLoopGroup(int maxChannels, ThreadFactory threadFactory, Object... args)

Create a new ThreadPerChannelEventLoopGroup.

Parameters

maxChannels:int: the maximum number of channels to handle with this instance. Once you try to register a new Channel and the maximum is exceed it will throw an ChannelException on the register(Channel) and register(ChannelPromise) method. Use 0 to use no limit
threadFactory:ThreadFactory: the ThreadFactory used to create new Thread instances that handle the registered Channels
args:Object[]: arguments which will passed to each newChild(Object...) call.

ThreadPerChannelEventLoopGroup back to summary

ThreadPerChannelEventLoopGroup	back to summary
protected ThreadPerChannelEventLoopGroup(int maxChannels, Executor executor, Object... args) Create a new `ThreadPerChannelEventLoopGroup`. Parameters maxChannels:int the maximum number of channels to handle with this instance. Once you try to register a new `Channel` and the maximum is exceed it will throw an `ChannelException` on the `register(Channel)` and `register(ChannelPromise)` method. Use `0` to use no limit executor:Executor the `Executor` used to create new `Thread` instances that handle the registered `Channel`s args:Object[] arguments which will passed to each `newChild(Object...)` call.

protected ThreadPerChannelEventLoopGroup(int maxChannels, Executor executor, Object... args)

Create a new ThreadPerChannelEventLoopGroup.

Parameters

maxChannels:int: the maximum number of channels to handle with this instance. Once you try to register a new Channel and the maximum is exceed it will throw an ChannelException on the register(Channel) and register(ChannelPromise) method. Use 0 to use no limit
executor:Executor: the Executor used to create new Thread instances that handle the registered Channels
args:Object[]: arguments which will passed to each newChild(Object...) call.

Method Detail

awaitTermination back to summary

awaitTermination	back to summary
public boolean awaitTermination(long timeout, TimeUnit unit) throws InterruptedException Implements java.util.concurrent.ExecutorService.awaitTermination. Doc from java.util.concurrent.ExecutorService.awaitTermination. Blocks until all tasks have completed execution after a shutdown request, or the timeout occurs, or the current thread is interrupted, whichever happens first. Parameters timeout:long the maximum time to wait unit:TimeUnit the time unit of the timeout argument Returns:boolean `true` if this executor terminated and `false` if the timeout elapsed before termination Annotations @Override Exceptions InterruptedException: if interrupted while waiting

public boolean awaitTermination(long timeout, TimeUnit unit) throws InterruptedException

Implements java.util.concurrent.ExecutorService.awaitTermination.

Doc from java.util.concurrent.ExecutorService.awaitTermination.

Blocks until all tasks have completed execution after a shutdown request, or the timeout occurs, or the current thread is interrupted, whichever happens first.

Parameters

timeout:long: the maximum time to wait
unit:TimeUnit: the time unit of the timeout argument

Returns:boolean

true if this executor terminated and false if the timeout elapsed before termination

Annotations

@Override

Exceptions

InterruptedException:: if interrupted while waiting

isShutdown back to summary

isShutdown	back to summary
public boolean isShutdown() Implements java.util.concurrent.ExecutorService.isShutdown. Doc from java.util.concurrent.ExecutorService.isShutdown. Returns `true` if this executor has been shut down. Returns:boolean `true` if this executor has been shut down Annotations @Override

public boolean isShutdown()

Implements java.util.concurrent.ExecutorService.isShutdown.

Doc from java.util.concurrent.ExecutorService.isShutdown.

Returns true if this executor has been shut down.

Returns:boolean

true if this executor has been shut down

Annotations

@Override

isShuttingDown back to summary

isShuttingDown	back to summary
public boolean isShuttingDown() Implements io.netty.util.concurrent.EventExecutorGroup.isShuttingDown. Doc from io.netty.util.concurrent.EventExecutorGroup.isShuttingDown. Returns `true` if and only if all `EventExecutor`s managed by this `EventExecutorGroup` are being shut down gracefully or was shut down. Annotations @Override

public boolean isShuttingDown()

Implements io.netty.util.concurrent.EventExecutorGroup.isShuttingDown.

Doc from io.netty.util.concurrent.EventExecutorGroup.isShuttingDown.

Returns true if and only if all EventExecutors managed by this EventExecutorGroup are being shut down gracefully or was shut down.

Annotations

@Override

isTerminated back to summary

isTerminated	back to summary
public boolean isTerminated() Implements java.util.concurrent.ExecutorService.isTerminated. Doc from java.util.concurrent.ExecutorService.isTerminated. Returns `true` if all tasks have completed following shut down. Note that `isTerminated` is never `true` unless either `shutdown` or `shutdownNow` was called first. Returns:boolean `true` if all tasks have completed following shut down Annotations @Override

public boolean isTerminated()

Implements java.util.concurrent.ExecutorService.isTerminated.

Doc from java.util.concurrent.ExecutorService.isTerminated.

Returns true if all tasks have completed following shut down. Note that isTerminated is never true unless either shutdown or shutdownNow was called first.

Returns:boolean

true if all tasks have completed following shut down

Annotations

@Override

iterator back to summary

iterator	back to summary
public Iterator<EventExecutor> iterator() Implements io.netty.util.concurrent.EventExecutorGroup.iterator. Doc from java.lang.Iterable.iterator. Returns an iterator over elements of type `T`. Returns:Iterator<EventExecutor> an Iterator. Annotations @Override

public Iterator<EventExecutor> iterator()

Implements io.netty.util.concurrent.EventExecutorGroup.iterator.

Doc from java.lang.Iterable.iterator.

Returns an iterator over elements of type T.

Returns:Iterator<EventExecutor>

an Iterator.

Annotations

@Override

newChild	back to summary
protected EventLoop newChild(Object... args) throws Exception Creates a new `EventLoop`. The default implementation creates a new `ThreadPerChannelEventLoop`.

next back to summary

next	back to summary
public EventLoop next() Implements io.netty.channel.EventLoopGroup.next, io.netty.util.concurrent.EventExecutorGroup.next. Doc from io.netty.channel.EventLoopGroup.next. Return the next `EventLoop` to use Annotations @Override

public EventLoop next()

Implements io.netty.channel.EventLoopGroup.next, io.netty.util.concurrent.EventExecutorGroup.next.

Doc from io.netty.channel.EventLoopGroup.next.

Return the next EventLoop to use

Annotations

@Override

nextChild	back to summary
private EventLoop nextChild() throws Exception

register	back to summary
public ChannelFuture register(Channel channel) Implements io.netty.channel.EventLoopGroup.register. Doc from io.netty.channel.EventLoopGroup.register. Register a `Channel` with this `EventLoop`. The returned `ChannelFuture` will get notified once the registration was complete. Annotations @Override

public ChannelFuture register(Channel channel)

Implements io.netty.channel.EventLoopGroup.register.

Doc from io.netty.channel.EventLoopGroup.register.

Register a Channel with this EventLoop. The returned ChannelFuture will get notified once the registration was complete.

Annotations

@Override

register	back to summary
public ChannelFuture register(ChannelPromise promise) Implements io.netty.channel.EventLoopGroup.register. Doc from io.netty.channel.EventLoopGroup.register. Register a `Channel` with this `EventLoop` using a `ChannelFuture`. The passed `ChannelFuture` will get notified once the registration was complete and also will get returned. Annotations @Override

public ChannelFuture register(ChannelPromise promise)

Implements io.netty.channel.EventLoopGroup.register.

Doc from io.netty.channel.EventLoopGroup.register.

Register a Channel with this EventLoop using a ChannelFuture. The passed ChannelFuture will get notified once the registration was complete and also will get returned.

Annotations

@Override

register	back to summary
public ChannelFuture register(Channel channel, ChannelPromise promise) Implements io.netty.channel.EventLoopGroup.register. Doc from io.netty.channel.EventLoopGroup.register. Deprecated Register a `Channel` with this `EventLoop`. The passed `ChannelFuture` will get notified once the registration was complete and also will get returned. Annotations @Deprecated @Override

public ChannelFuture register(Channel channel, ChannelPromise promise)

Implements io.netty.channel.EventLoopGroup.register.

Doc from io.netty.channel.EventLoopGroup.register.

Deprecated

Register a Channel with this EventLoop. The passed ChannelFuture will get notified once the registration was complete and also will get returned.

Annotations

@Deprecated
@Override

shutdown back to summary

shutdown	back to summary
public void shutdown() Implements abstract io.netty.util.concurrent.AbstractEventExecutorGroup.shutdown. Implements io.netty.util.concurrent.EventExecutorGroup.shutdown. Doc from java.util.concurrent.ExecutorService.shutdown. Deprecated Initiates an orderly shutdown in which previously submitted tasks are executed, but no new tasks will be accepted. Invocation has no additional effect if already shut down. This method does not wait for previously submitted tasks to complete execution. Use `awaitTermination` to do that. Annotations @Override @Deprecated

public void shutdown()

Implements abstract io.netty.util.concurrent.AbstractEventExecutorGroup.shutdown.

Implements io.netty.util.concurrent.EventExecutorGroup.shutdown.

Doc from java.util.concurrent.ExecutorService.shutdown.

Deprecated

Initiates an orderly shutdown in which previously submitted tasks are executed, but no new tasks will be accepted. Invocation has no additional effect if already shut down.

This method does not wait for previously submitted tasks to complete execution. Use awaitTermination to do that.

Annotations

@Override
@Deprecated

shutdownGracefully back to summary

shutdownGracefully	back to summary
public Future<?> shutdownGracefully(long quietPeriod, long timeout, TimeUnit unit) Implements io.netty.util.concurrent.EventExecutorGroup.shutdownGracefully. Doc from io.netty.util.concurrent.EventExecutorGroup.shutdownGracefully. Signals this executor that the caller wants the executor to be shut down. Once this method is called, `isShuttingDown()` starts to return `true`, and the executor prepares to shut itself down. Unlike `shutdown()`, graceful shutdown ensures that no tasks are submitted for 'the quiet period' (usually a couple seconds) before it shuts itself down. If a task is submitted during the quiet period, it is guaranteed to be accepted and the quiet period will start over. Parameters quietPeriod:long the quiet period as described in the documentation timeout:long the maximum amount of time to wait until the executor is shutdown() regardless if a task was submitted during the quiet period unit:TimeUnit the unit of `quietPeriod` and `timeout` Returns:Future<?> the `terminationFuture()` Annotations @Override

public Future<?> shutdownGracefully(long quietPeriod, long timeout, TimeUnit unit)

Implements io.netty.util.concurrent.EventExecutorGroup.shutdownGracefully.

Doc from io.netty.util.concurrent.EventExecutorGroup.shutdownGracefully.

Signals this executor that the caller wants the executor to be shut down. Once this method is called, isShuttingDown() starts to return true, and the executor prepares to shut itself down. Unlike shutdown(), graceful shutdown ensures that no tasks are submitted for 'the quiet period' (usually a couple seconds) before it shuts itself down. If a task is submitted during the quiet period, it is guaranteed to be accepted and the quiet period will start over.

Parameters

quietPeriod:long: the quiet period as described in the documentation
timeout:long: the maximum amount of time to wait until the executor is shutdown() regardless if a task was submitted during the quiet period
unit:TimeUnit: the unit of quietPeriod and timeout

Returns:Future<?>

the terminationFuture()

Annotations

@Override

terminationFuture back to summary

terminationFuture	back to summary
public Future<?> terminationFuture() Implements io.netty.util.concurrent.EventExecutorGroup.terminationFuture. Doc from io.netty.util.concurrent.EventExecutorGroup.terminationFuture. Returns the `Future` which is notified when all `EventExecutor`s managed by this `EventExecutorGroup` have been terminated. Annotations @Override

public Future<?> terminationFuture()

Implements io.netty.util.concurrent.EventExecutorGroup.terminationFuture.

Doc from io.netty.util.concurrent.EventExecutorGroup.terminationFuture.

Returns the Future which is notified when all EventExecutors managed by this EventExecutorGroup have been terminated.

Annotations

@Override

public Class ThreadPerChannelEventLoopGroup

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail